Concept explainers
In Problems 27–30, (a) construct a histogram for the data using the given number of classes to show that the data are approximately
28. Repeat Exercise 27 for the reaction times of 25 subjects with a zero blood alcohol level:
0.7 | 1.1 | 1.1 | 1.2 | 1.4 | 1.4 | 1.4 | 1.5 | 1.5 |
1.5 | 1.6 | 1.6 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.8 |
t.9 | 1.9 | 2.1 | 2.2 | 2.3 | 2.5 | 2.6 |
27. A researcher is studying reaction times in adult subjects that are alcohol-impaired in an effort to study the effects of impairment on driving. The amount of time 25 randomly selected adults take to react to a stimulus when they have a blood alcohol level of 0.08 was recorded and is displayed below. Use live classes; find the probability that a randomly selected driver with a blood alcohol of 0.08 will lake less than 1.5 seconds Lo react, and the probability that he or she will take between 2 and 4 seconds to react.
1.2 | 1.5 | 1.6 | 1.6 | 1.7 | 1.9 | 2.0 | 2.1 | 2.1 |
2.2 | 2.2 | 2.2 | 2.3 | 2.4 | 2.4 | 2.5 | 2.5 | 2.7 |
2.8 | 2.8 | 2.8 | 3.0 | 3.1 | 3.3 | 3.5 |
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Chapter 11 Solutions
MATH IN OUR WORLD
- 4.3 The Chain Rule 1. {Algebra review} Let f(x)=2x²-5 x and g(x)=6x+2. Find f[g(−5)]. 2. {Algebra review} Write h(x)=√√8x-3 as the composite of two functions f(x) and g(x). (There may be more than one way to do this.)arrow_forward4.4 Derivatives of Exponential Functions 1. Find derivatives of the functions defined as follows. a. g(t)=-3.4e b. y=e√x c. f(x)=(4x³+2)e³* d. y=- x²arrow_forward4.5 Derivatives of Logarithmic Functions 1. Find the derivative of each function. a) y=ln (-3x) b) f(u)=nu c) 9(x)=x-1 lnxarrow_forward
- 3. If the total revenue received from the sale of x items is given by R(x)=30ln (2x+1), While the total cost to produce x items is C(x)=✗, find the following. a) The marginal revenue b) The profit function P(x) (Hint: P(x)=R(x)-C(x)} c) The marginal profit when x=20 d) Interpret the results of part c).arrow_forward2. The sales of a new personal computer (in thousands) are given by S(t)=100-90€-04: Where t represents time in years. Find and interpret the rate of change of sales at each time. a) After 1 year b) After 5 years c) What is happening to the rate of change of sales as time goes on? d) Does the rate of change of sales ever equal zero?arrow_forward2. Find the equation of the line tangent to the graph of f(x)=ln(x²+5) at the point (-1, In 6). Do not approximate numbers.arrow_forward
- only need help with question 3arrow_forward6. The number of viewers of a television series introduced several years ago is approximated by N(t)=(60+2t2/3,1arrow_forwardx 1 3 5 7 f -1 3 15 35 7 • Sea) dx from the faible find: 1 f(x) dx by Sempeson method 8 2 if S .dx find h? ? 2Xarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
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